diff --git a/lib/reducers/master-reducer.js b/lib/reducers/master-reducer.js
--- a/lib/reducers/master-reducer.js
+++ b/lib/reducers/master-reducer.js
@@ -39,6 +39,7 @@
   type ReplaceKeyserverOperation,
 } from '../ops/keyserver-store-ops.js';
 import { isStaff } from '../shared/staff-utils.js';
+import { processDMOpsActionType } from '../types/dm-ops.js';
 import type { BaseNavInfo } from '../types/nav-types.js';
 import type { BaseAppState, BaseAction } from '../types/redux-types.js';
 import {
@@ -186,6 +187,31 @@
   const { threadActivityStore, threadActivityStoreOperations } =
     reduceThreadActivity(state.threadActivityStore, action);
 
+  let storeOperations = {
+    draftStoreOperations,
+    threadStoreOperations,
+    messageStoreOperations,
+    reportStoreOperations,
+    userStoreOperations,
+    keyserverStoreOperations,
+    communityStoreOperations,
+    integrityStoreOperations,
+    syncedMetadataStoreOperations,
+    auxUserStoreOperations,
+    threadActivityStoreOperations,
+    entryStoreOperations,
+  };
+
+  if (
+    action.type === processDMOpsActionType &&
+    action.payload.outboundP2PMessages
+  ) {
+    storeOperations = {
+      ...storeOperations,
+      outboundP2PMessages: action.payload.outboundP2PMessages,
+    };
+  }
+
   return {
     state: {
       ...state,
@@ -227,19 +253,6 @@
         action,
       ),
     },
-    storeOperations: {
-      draftStoreOperations,
-      threadStoreOperations,
-      messageStoreOperations,
-      reportStoreOperations,
-      userStoreOperations,
-      keyserverStoreOperations,
-      communityStoreOperations,
-      integrityStoreOperations,
-      syncedMetadataStoreOperations,
-      auxUserStoreOperations,
-      threadActivityStoreOperations,
-      entryStoreOperations,
-    },
+    storeOperations,
   };
 }
diff --git a/lib/shared/dm-ops/process-dm-ops.js b/lib/shared/dm-ops/process-dm-ops.js
--- a/lib/shared/dm-ops/process-dm-ops.js
+++ b/lib/shared/dm-ops/process-dm-ops.js
@@ -148,6 +148,7 @@
           payload: {
             rawMessageInfos,
             updateInfos,
+            outboundP2PMessages: null,
           },
         },
         metadata,
diff --git a/lib/types/dm-ops.js b/lib/types/dm-ops.js
--- a/lib/types/dm-ops.js
+++ b/lib/types/dm-ops.js
@@ -351,6 +351,7 @@
 export type ProcessDMOpsPayload = {
   +rawMessageInfos: $ReadOnlyArray<RawMessageInfo>,
   +updateInfos: $ReadOnlyArray<ClientUpdateInfo>,
+  +outboundP2PMessages: ?$ReadOnlyArray<OutboundP2PMessage>,
 };
 
 export const queueDMOpsActionType = 'QUEUE_DM_OPS';